I’m mesmerized by the idea of wearing a trench coat as a dress, nothing underneath. The contrast is so sexy. For an ubiquitous basic piece like this, I like to look for details: Capelet, contrast sleeves, luxurious material, or fun colors makes one stand out. Here, Blake Lively showed us how to wear it for day and night. Her unstudied attitude and signature tousled hair are the best accessories!